X-Git-Url: https://git.ozlabs.org/?p=ppp.git;a=blobdiff_plain;f=include%2Flinux%2Fif_pppvar.h;h=69195255fe1bea828601794e34b676959e3ac49f;hp=8d3dfc355d315a0b234e5907eb3c4f1692c39981;hb=050b89c40f0441d4445563043aae5ea1bd94bcc3;hpb=0f61ac5460e89dd768f1fb56fbdd8fa6f8af79f1 diff --git a/include/linux/if_pppvar.h b/include/linux/if_pppvar.h index 8d3dfc3..6919525 100644 --- a/include/linux/if_pppvar.h +++ b/include/linux/if_pppvar.h @@ -1,4 +1,4 @@ -/* $Id: if_pppvar.h,v 1.3 1995/12/18 03:38:02 paulus Exp $ */ +/* From: if_pppvar.h,v 1.2 1995/06/12 11:36:51 paulus Exp */ /* * if_pppvar.h - private structures and declarations for PPP. * @@ -42,15 +42,15 @@ */ /* - * ==FILEVERSION 4== + * ==FILEVERSION 990813== * * NOTE TO MAINTAINERS: - * If you modify this file at all, increment the number above. - * if_pppvar.h is shipped with a PPP distribution as well as with the kernel; - * if everyone increases the FILEVERSION number above, then scripts - * can do the right thing when deciding whether to install a new if_pppvar.h - * file. Don't change the format of that line otherwise, so the - * installation script can recognize it. + * If you modify this file at all, please set the above date. + * if_pppvar.h is shipped with a PPP distribution as well as with the kernel; + * if everyone increases the FILEVERSION number above, then scripts + * can do the right thing when deciding whether to install a new if_pppvar.h + * file. Don't change the format of that line otherwise, so the + * installation script can recognize it. */ /* @@ -59,31 +59,12 @@ */ #define NP_IP 0 /* Internet Protocol */ -#define NUM_NP 1 /* Number of NPs. */ +#define NP_IPX 1 /* IPX protocol */ +#define NP_AT 2 /* Appletalk protocol */ +#define NP_IPV6 3 /* Internet Protocol */ +#define NUM_NP 4 /* Number of NPs. */ -/* - * Buffers for the PPP process have the following structure - */ - -#define RBUFSIZE 2048 /* MUST be a power of 2 and be <= 4095 */ - -struct ppp_buffer { - int size; /* Size of the buffer area */ - int count; /* Count of characters in bufr */ - int head; /* index to head of list */ - int tail; /* index to tail of list */ - unsigned long locked; /* Buffer is being sent */ - int type; /* Type of the buffer */ - /* =0, device read buffer */ - /* =1, device write buffer */ - /* =2, daemon write buffer */ - /* =3, daemon read buffer */ - unsigned short fcs; /* Frame Check Sequence (CRC) */ - unsigned char filler[4]; /* Extra space if needed */ -}; - -/* Given a pointer to the ppp_buffer then return base address of buffer */ -#define buf_base(buf) ((u_char *) (&buf[1])) +#define OBUFSIZE 256 /* # chars of output buffering */ /* * Structure describing each ppp unit. @@ -91,66 +72,67 @@ struct ppp_buffer { struct ppp { int magic; /* magic value for structure */ + struct ppp *next; /* unit with next index */ + unsigned long inuse; /* are we allocated? */ + int line; /* network interface unit # */ + __u32 flags; /* miscellaneous control flags */ + int mtu; /* maximum xmit frame size */ + int mru; /* maximum receive frame size */ + struct slcompress *slcomp; /* for TCP header compression */ + struct sk_buff_head xmt_q; /* frames to send from pppd */ + struct sk_buff_head rcv_q; /* frames for pppd to read */ + unsigned long xmit_busy; /* bit 0 set when xmitter busy */ + + /* Information specific to using ppp on async serial lines. */ + struct tty_struct *tty; /* ptr to TTY structure */ + struct tty_struct *backup_tty; /* TTY to use if tty gets closed */ + __u8 escape; /* 0x20 if prev char was PPP_ESC */ + __u8 toss; /* toss this frame */ + volatile __u8 tty_pushing; /* internal state flag */ + volatile __u8 woke_up; /* internal state flag */ + __u32 xmit_async_map[8]; /* 1 bit means that given control + character is quoted on output*/ + __u32 recv_async_map; /* 1 bit means that given control + character is ignored on input*/ + __u32 bytes_sent; /* Bytes sent on frame */ + __u32 bytes_rcvd; /* Bytes recvd on frame */ - /* Bitmapped flag fields. */ - char inuse; /* are we allocated? */ - char escape; /* 0x20 if prev char was PPP_ESC*/ - char toss; /* toss this frame */ + /* Async transmission information */ + struct sk_buff *tpkt; /* frame currently being sent */ + int tpkt_pos; /* how much of it we've done */ + __u16 tfcs; /* FCS so far for it */ + unsigned char *optr; /* where we're up to in sending */ + unsigned char *olim; /* points past last valid char */ - unsigned int flags; /* miscellany */ + /* Async reception information */ + struct sk_buff *rpkt; /* frame currently being rcvd */ + __u16 rfcs; /* FCS so far of rpkt */ - ext_accm xmit_async_map; /* 1 bit means that given control - character is quoted on output*/ + /* Queues for select() functionality */ + struct wait_queue *read_wait; /* queue for reading processes */ + + /* info for detecting idle channels */ + unsigned long last_xmit; /* time of last transmission */ + unsigned long last_recv; /* time last packet received */ + + /* Statistic information */ + struct pppstat stats; /* statistic information */ + + /* PPP compression protocol information */ + struct compressor *sc_xcomp; /* transmit compressor */ + void *sc_xc_state; /* transmit compressor state */ + struct compressor *sc_rcomp; /* receive decompressor */ + void *sc_rc_state; /* receive decompressor state */ - __u32 recv_async_map; /* 1 bit means that given control - character is ignored on input*/ - int mtu; /* maximum xmit frame size */ - int mru; /* maximum receive frame size */ - - /* Information about the current tty data */ - int line; /* PPP channel number */ - struct tty_struct *tty; /* ptr to TTY structure */ - int bytes_sent; /* Bytes sent on frame */ - int bytes_rcvd; /* Bytes recvd on frame */ - - /* Interface to the network layer */ - struct device *dev; /* easy for intr handling */ - - /* VJ Header compression data */ - struct slcompress *slcomp;/* for header compression */ - - /* Transmission information */ - struct ppp_buffer *xbuf; /* Buffer currently being sent */ - struct ppp_buffer *s1buf; /* Pointer to daemon buffer */ - struct ppp_buffer *s2buf; /* Pointer to device buffer */ - - __u32 last_xmit; /* time of last transmission */ - - /* These are pointers to the malloc()ed frame buffers. - These buffers are used while processing a packet. If a packet - has to hang around for the user process to read it, it lingers in - the user buffers below. */ - - struct ppp_buffer *wbuf; /* Transmission information */ - struct ppp_buffer *tbuf; /* daemon transmission buffer */ - struct ppp_buffer *rbuf; /* Receive information */ - struct ppp_buffer *ubuf; /* User buffer information */ - struct ppp_buffer *cbuf; /* compression buffer */ - - /* Queues for select() functionality */ - struct wait_queue *write_wait; /* queue for reading processes */ - struct wait_queue *read_wait; /* queue for writing processes */ - - /* Statistic information */ - struct pppstat stats; /* statistic information */ - struct ppp_idle ddinfo; /* demand dial information */ - - /* PPP compression protocol information */ - u_int sc_bytessent; /* count of octets sent */ - u_int sc_bytesrcvd; /* count of octets received */ enum NPmode sc_npmode[NUM_NP]; /* what to do with each NP */ - struct compressor *sc_xcomp; /* transmit compressor */ - void *sc_xc_state; /* transmit compressor state */ - struct compressor *sc_rcomp; /* receive decompressor */ - void *sc_rc_state; /* receive decompressor state */ + int sc_xfer; /* PID of reserved PPP table */ + char name[8]; /* space for unit name */ + struct device dev; /* net device structure */ + struct enet_statistics estats; /* more detailed stats */ + + /* tty output buffer */ + unsigned char obuf[OBUFSIZE]; /* buffer for characters to send */ }; + +#define PPP_MAGIC 0x5002 +#define PPP_VERSION "2.3.9"